Reproduction in eukaryotes can be sexual or asexual. Evolutionist Lynn Margulis showed that a major organizational event … In accordance with the endosymbiotic theory of origin of eukaryotic cells, the eukaryotes have evolved from number of cells that happened to join together and form a single eukaryotic cell. The Endosymbiotic Theory. Favorite Answer. Relevance. States that organelles such as chloroplasts and mitochondria were once free-living prokaryotes which eventually lived symbiotically within larger cells, forming modern day eukaryotes. Describe: Question number: 06: Adapted from: N/A Question. Evidence for the Endosymbiotic Theory The Endosymbiotic Theory is no different. (4 points maximum) Describe THREE observations that support the endosymbiotic theory. Though it is true that she was the first to claim the endosymbiont… Imagine that you have bacterial cells with intact cell walls. Mitochondria is usually well thought-out to have arisen from proteobacteria (order:Rickettsiales) by endosymbiosis. [4] a. The idea that some organelles in the cells of animals, plants, fungi and protozoa were actually bacteria. 5 Answers. describe the endosymbiotic theory? (c) According to the endosymbiotic theory, some organelles are believed to have evolved through a symbiotic relationship between eukaryotic and prokaryotic cells. ... 11M.3.HL.TZ1.3: Discuss the endosymbiotic theory for the origin of eukaryotes. 1 decade ago. Some researchers answered no. Many in the scientific community claim that Dr. Lynn Margulis had been the first to propose the Endosymbiotic Theory. Multiple lines of evidence support the endosymbiotic theory. What would happen to the cells if they are placed in a hypotonic solution and why? The endosymbiotic event that generated mitochondria must have happened early in the history of eukaryotes, because all eukaryotes have them. Briefly describe endosymbiotic theory and describe 3 characteristics of mitochondria that support the theory. Endosymbiont theory was originally put forward by biologist L. Margulis in the 1960s. But did that mean that new lineages and adaptations only form by branching off of old ones and inheriting the genes of the old lineage? Endosymbiotic theory tries to explicate about the origins of cell organelles of eukaryotes such as mitochondria and chloroplasts. Answer Save. Anonymous. Describe the origin of eukaryotic cells according to the endosymbiotic theory. Better known as Symbiogenesis. Like most subjects in science, an accepted theory is developed from the combined efforts of multiple researchers. The endosymbiotic theory of the origin of eukaryotic cells states that all the individuals are evolved from the same individual. What would you expect to happen if you place the cells in a hypertonic solution and why? Then, later, a similar event brought chloroplasts into some eukaryotic cells, creating the lineage that led to plants. The Modern Synthesis established that over time, natural selection acting on mutations could generate new adaptations and new species. Not only is endosymbiosis observed elsewhere in biology, but mitochondria and chloroplasts have DNA that is different from what is found in the nucleus of a eukaryotic cell, and their structure, biochemistry, and genetic makeup is similar to certain prokaryotes.
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